But sealed wheel bearings are non-serviceable and should never be repaired, only replaced. Even if a pro suggests repairing a bearing, don’t let them. Trying to reuse a damaged wheel bearing can result in an accident and severe injury.

Start by parking your vehicle, or in this case – trailer – on a level surface. Jack up the wheel being worked on, support the axle using a rated stand – and remove the hubs by following a workshop manual.

Before inserting the new race, clean the area up with a clean rag, and use a wire brush to remove any stubborn grime or corrosion.

You can service or replace tapered wheel bearings yourself. Never reuse any wheel bearing that’s loose, worn, noisy or shows any signs of wear.

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Joe Simes is an ASE and Toyota master technician. After 20 years in the industry, Simes recently became a Pennsylvania Department of Education certified automotive technology instructor at North Montco Technical Career Center in Lansdale, Pennsylvania.

The cage and rollers are held together inside a hardened metal ring called a “race.” The seal keeps grease in and damaging water and debris out. Wheel bearings are installed inside, and secured to, the suspension, either by press fit, bolts or a snap-ring. Once mounted, the wheel bearing rides on the axle shaft, allowing the tire/wheel to spin effortlessly.

Position the race on the hub, and hit the back of the handle with a hammer - to seat the bearing race all the way down into the hub. The collars are constructed of 6061 aluminium, which is softer than the bearing race to prevent damage, but still hard enough to stand up to regular use.

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You’ll hear clicking, cracking, grinding, snapping, or whining noises coming from your wheels or tires. They’ll increase when accelerating or turning.

A bad wheel bearing can cause a tire/wheel to move or glide unevenly or sluggishly. It can also cause your brakes to drag, pulling your vehicle to one side when you try to stop.

Absolutely not. It’s crucial to get bad wheel bearings diagnosed and replaced ASAP. If not, you could lose a wheel or get in an accident.

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Wheelbearing replacementcost

Friction from a failing wheel bearing produces heat. After driving, without touching the tires or wheels, carefully walk around your vehicle and use a non-touch thermometer to measure if one is hotter than the others.

Depending on the vehicle, you can save hundreds in labor replacing wheel bearings yourself. Most auto parts stores will lend you the specialty tools and equipment needed to replace a wheel bearing.

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Simply stated, wheel bearings allow cars and trucks to run smoother and more efficiently by reducing friction and supporting vehicle weight. When they start to fail, you can usually tell.

For driving seals into place, use the flat side of the tool which closest matches the outer diameter of your seal. Apply a little grease; and drive it into the hub using the same technique as with the bearing race.

There are 9 different sized collars in the Bearing Race and Seal Driver set, to suit most wheel bearing sizes. Choosing the right one for the job is as simple as sliding a new bearing race over the tapered end of the collars - until you find the one with the best fit.

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Wheel bearings

Unlike unbalanced tires, shaking caused by a bad wheel bearing should be obvious from the side of the car where the bearing is failing.

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Read on to learn the most common bad wheel bearing symptoms, based on my experience (50 years in the industry) and that of Joe Simes, a National Institute for Automotive Service Excellence (ASE) certified and Toyota master technician. But first, a little background.

Once all of the bearings are out, give the hub a good clean - mount it firmly in a bench vice, and drive the old bearing races out using a punch. Most hub assemblies have a relief cast into them, to allow the punch a proper purchase on the bearing race.

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To make your job even easier, the collars in the race driver kit can be used with the SCA 6000 Kilogram Shop Press, allowing you precise control when installing bearing races and seals.

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Wheel hubbearing

The average cost to replace a sealed wheel hub bearing is $350 per wheel. However, depending on the make and model, shop labor rate, the cost of the bearing itself and any additional damage, the total could exceed $1,000.

On many vehicles, the ABS sensor is built into the wheel bearing, or it’s externally mounted adjacent to the spinning part of the bearing where the sensor measures vehicle speed. Damaged from a wobbly wheel bearing, the sensor will send erratic readings to the vehicle’s computer, illuminating the ABS light.

NOTE: Whether you DIY or your mechanic replaces the bearing, always install a new axle hub nut. Most hub nuts are prevailing torque fasteners, used on critical components (like securing axle shafts to hub bearings) where a loose nut could lead to disastrous consequences.

According to Simes, a failing wheel bearing will likely produce a soft, faint vibration that’s felt before it’s heard. There may also be a vague rhythmic humming or droning sound that increases over time and with speed.

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The outer bearing should fall out easily, whereas the inner bearing will require the seal to first be removed - using a seal puller or a flathead screwdriver.

The ToolPRO Bearing Race and Seal Driver kit will help you get the job done properly - without damaging your brand new parts.

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The split inner ring allows each ball bearing to rotate independently. Generation 1 does not include a hub, which must be purchased separately. GENERATION #2.

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On modern front- and four-wheel drive cars, wheel bearings are a set of permanently sealed, precisely machined steel ball or straight roller bearings. The balls, or rollers, are encased in a “cage” that supports the bearings, allowing them to rotate freely.

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